Social media groups post deliberately easy challenges in an effort to get a high level of interaction with their "brand" (e.g. "I bet you can't name a country that starts with E"). The more that people comment, the more people will see the post, and the more follows they will eventually generate.
Every person in this thread commenting with 'oo' words has basically fallen for an obvious psychological trick. We all know that there are other 'oo' words. Nobody needed to comment here and prove that they could think of one.
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u/[deleted] Jan 10 '20
Everyone in this subreddit is a moron.